EP0794830B1 - Device for mixing particulate material and liquid - Google Patents

Device for mixing particulate material and liquid Download PDF

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Publication number
EP0794830B1
EP0794830B1 EP95939453A EP95939453A EP0794830B1 EP 0794830 B1 EP0794830 B1 EP 0794830B1 EP 95939453 A EP95939453 A EP 95939453A EP 95939453 A EP95939453 A EP 95939453A EP 0794830 B1 EP0794830 B1 EP 0794830B1
Authority
EP
European Patent Office
Prior art keywords
container
particulate material
discs
liquid
flue gases
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95939453A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0794830A1 (en
Inventor
Stefan Ahman
Nils Bringfors
Lars-Erik Johansson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Alstom Sweden AB
Original Assignee
UK Secretary of State for Defence
ABB Flaekt AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UK Secretary of State for Defence, ABB Flaekt AB filed Critical UK Secretary of State for Defence
Publication of EP0794830A1 publication Critical patent/EP0794830A1/en
Application granted granted Critical
Publication of EP0794830B1 publication Critical patent/EP0794830B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/54—Mixing liquids with solids wetting solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/73—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with rotary discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/406—Mixers using gas or liquid agitation, e.g. with air supply tubes in receptacles with gas supply only at the bottom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/50—Mixing liquids with solids
    • B01F23/565—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries
    • B01F23/566—Mixing liquids with solids by introducing liquids in solid material, e.g. to obtain slurries by introducing liquids in a fluidised bed

Definitions

  • This invention concerns a device for mixing particulate material and liquid, for instance for mixing water and absorbent material which is reactive with gaseous pollutants in flue gases and which, during cleaning of the flue gases, is to be introduced into these gases in moistened state in order to convert the gaseous pollutants to separable dust, said device comprising a container, an inlet for the introduction of particulate material into the container, a spraying means for spraying liquid over the particulate material in the container, an agitator arranged in the container, and an outlet for discharging material mixed with liquid from the container.
  • a mixing device of this kind is revealed in US-PS 4,049,240 for the purpose of moisturizing dry material during removal from a storage bin to avoid dust pollution which could occur during loading and transport.
  • a screw conveyor feeds the material to a mixing drum circumscribing the conveyor. Stationary curved blades, inside the rotating drum, direct fine particles into a water shower located within said drum .
  • gaseous pollutants such as sulphur dioxide
  • the gases are conducted through a contact reactor in which particulate absorbent material reactive with the gaseous pollutants is, in moistened state, introduced into the flue gases in order to convert the gaseous pollutants to separable dust.
  • the flue gases are then conducted through a dust separator, in which dust is separated from the flue gases and from which the thus-cleaned flue gases are drawn off.
  • Part of the dust separated in the dust separator is conducted to a mixer, where it is mixed and moistened with water, whereupon it is recycled as absorbent material by being introduced into the flue gases along with an addition of fresh absorbent.
  • fresh absorbent use is generally made of slaked lime (calcium hydroxide).
  • the agitator consists of one or more shafts, on which are mounted agitating means in the form of helical flanges, blades, paddles or the like.
  • these prior-art devices are not always capable of producing a homogeneous mixture in which the water is evenly distributed in the particulate material. As a result, moist lumps of material may form, especially when the particulate material contains a large proportion of hydrophobic particles, as is the case with fly ash.
  • the absorbent material is supplied to the flue gases in the form of a homogeneous mixture in which the moisture is evenly distributed.
  • a special object of this invention is, therefore, to provide a device which is especially adapted to be used for mixing absorbent material and water in the flue-gas-cleaning method described above and which then results in a homogeneous mixture.
  • a more general object of the invention is to provide a device which not only results in a homogeneous mixture of particulate material and liquid, but which also has a lower energy consumption than equivalent prior-art devices.
  • a device which is of the type mentioned by way of introduction and which is characterised in that the container has an upper bottom and a lower bottom, which between them define a chamber and of which the upper bottom is air-permeable, and there is provided an air-supply means adapted to supply air to the chamber with a view to fluidising the particulate material in the container.
  • the agitator consists of at least one rotary shaft which extends along the container and on which a plurality of discs, through the centres of which extends the shaft, are mounted in inclined state at an axial distance from one another .
  • these discs have an elliptic shape and are, about their minor axes, so inclined in relation to the shaft as to have a circular axial projection.
  • the discs are inclined at an angle of 45-80°, preferably about 60° .
  • the mixing device illustrated comprises a container 1, which essentially is in the shape of an elongate, parallelepidal box.
  • the container 1 has vertical side walls 2 and 3, a vertical rear end wall 4, a vertical front end wall 5, a horizontal upper bottom 6, a horizontal lower bottom 7 and a horizontal top or lid 8.
  • the container 1 has an inlet 9, through which particulate material is supplied from above (the arrow P1 in Fig. 1).
  • the container 1 has an outlet 10, through which is discharged a homogeneous mixture of particulate material and water (the arrows P2 in Figs 2 and 3).
  • the front end of the container 1 is inserted in a vertical flue-gas channel 11 through which flue gases containing gaseous pollutants, such as sulphur dioxide, are conducted upwards (the arrows P3 in Figs 1 and 3) in order to be cleaned in known fashion.
  • the outlet 10 is an overflow formed as a result of the side walls 2 and 3 being lower in the container part inserted in the channel 11 than in the container part located outside the channel 11.
  • the top 8 extends from the inlet 9 to the outlet 10, i.e. up to the flue-gas channel 11.
  • the two bottoms 6 and 7 define a chamber 12 which, in the lateral direction, is delimited by the two side walls 2 and 3 and, in the longitudinal direction, is delimited by the two end walls 4 and 5.
  • the ceiling of the chamber 12, i.e. the upper bottom 6, consists of an air-permeable fluidisation cloth of polyester mounted in stretched state in the container 1.
  • An air-supply means, which here consists of two air inlets 13 and 14, is arranged to supply air to the chamber 12 (the arrows P4 in Figs 1 and 2), so as to fluidise the particulate material in the container 1.
  • Two juxtaposed, horizontal shafts 17, 17' extend along the entire container 1 and are rotatably mounted in the two end walls 4 and 5 with the aid of bearings 18, 18' and 19, 19', respectively.
  • a motor 20 is arranged to rotate the shafts 17, 17' via a transmission unit 21.
  • Each shaft 17, 17' supports a plurality of elliptic discs 22, 22' which, about their minor axes, are mounted in inclined state on the shaft 17, 17' at an axial distance from one another.
  • the shafts 17, 17' extend through the centres of the respective discs 22, 22'.
  • each disc 22, 22' is so inclined in relation to the shaft 17, 17' that the angle ⁇ between the major axis of the disc and the shaft 17, 17' is about 60° (see Fig. 1). This angle ⁇ may vary between 45° and 80°.
  • the discs 22, 22' are so inclined in relation to the respective shafts 17, 17' and have such an elliptic shape as to have a circular axial projection, as illustrated in Fig. 3.
  • the discs 22, 22' are so positioned on the respective shafts 17, 17' that the discs of the one shaft project into the spaces between the discs of the other shaft.
  • Each of the discs 22, 22' arranged and designed in the manner indicated above performs, during the rotation of the shafts 17, 17', a throwing movement conducive to thorough mixing of particulate material.
  • the flue-gas channel 11 illustrated forms part of a system for cleaning flue gases containing gaseous pollutants, such as sulphur dioxide.
  • the flue gases (P3) are passed through the flue-gas channel 11, in which particulate absorbent material reactive with the gaseous pollutants is, in moistened state, introduced into the flue gases in order to convert the gaseous pollutants to separable dust.
  • the flue gases are then passed through a dust separator (not shown), in which dust is separated from the flue gases and from which the thus-cleaned flue gases are discharged into the surrounding atmosphere. Part of the dust separated in the dust separator is, along with an addition of fresh absorbent, e.g.
  • particulate material (P1) supplied as particulate material (P1) to the inlet 9 of the container 1, so as to be, in the container, mixed with water sprayed over the particulate material in the container through the nozzles 16.
  • P4 The particulate material in the container 1 is maintained in fluidised state by means of air (P4) which, via the air inlets 13 and 14, the chamber 12 and the fluidisation cloth 6, is introduced into the container.
  • the chamber 12 is divided into a front part chamber 12a, which is situated in the flue-gas channel 11, and a rear part chamber 12b.
  • the air inlet 13 opens into the rear part chamber 12b, while the air inlet 14 opens into the front part chamber 12a.
  • the container 1 was filled with particulate material.
  • the container 1 had a volume of 0.3 m 3 .
  • the shafts 17, 17' were rotated at a speed of 200 rpm.
  • the flow rate of particulate material passing through the container was 8 m 3 /h, and the flow rate of the water was 240 1/h.
  • the power consumption including the power consumption of the supply of fluidisation air (0.08 m 3 /s), was found to be 2.2 kW. With no fluidisation but otherwise under the same conditions, the power consumption was 3 kW.
  • the mixing device may also be used for discharging a homogeneously moistened, homogeneous mixture of particulate material into two separate channels, in which case the front end of the container 1 extends into these two channels in such a manner that the mixture is discharged into the one channel via the overflow 10 in the side wall 2 and discharged into the other channel via the overflow 10 in the side wall 3.
  • the relationship between the flows of material to the two channels may be set by choosing suitable levels for the overflow 10 at the respective sides, i.e. by a suitable choice of height for the respective side walls 2, 3 in the container part inserted in the channels.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Nozzles (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Package Specialized In Special Use (AREA)
  • Unwinding Webs (AREA)
  • Paints Or Removers (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP95939453A 1994-11-28 1995-11-24 Device for mixing particulate material and liquid Expired - Lifetime EP0794830B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9404104 1994-11-28
SE9404104A SE503674C2 (sv) 1994-11-28 1994-11-28 Anordning för blandning av partikelformigt material och vätska
PCT/SE1995/001401 WO1996016727A1 (en) 1994-11-28 1995-11-24 Device for mixing particulate material and liquid

Publications (2)

Publication Number Publication Date
EP0794830A1 EP0794830A1 (en) 1997-09-17
EP0794830B1 true EP0794830B1 (en) 2002-02-06

Family

ID=20396124

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95939453A Expired - Lifetime EP0794830B1 (en) 1994-11-28 1995-11-24 Device for mixing particulate material and liquid

Country Status (28)

Country Link
US (1) US5887973A (sv)
EP (1) EP0794830B1 (sv)
JP (1) JP3649290B2 (sv)
KR (1) KR100425997B1 (sv)
CN (1) CN1076980C (sv)
AT (1) ATE212875T1 (sv)
AU (1) AU699500B2 (sv)
BR (1) BR9509828A (sv)
CA (1) CA2205059C (sv)
CZ (1) CZ287812B6 (sv)
DE (1) DE69525370T2 (sv)
DK (1) DK0794830T3 (sv)
EE (1) EE9700119A (sv)
ES (1) ES2172602T3 (sv)
FI (1) FI972232A (sv)
HU (1) HU221802B1 (sv)
MD (1) MD1228G2 (sv)
PL (1) PL178051B1 (sv)
PT (1) PT794830E (sv)
RO (1) RO115424B1 (sv)
RU (1) RU2137535C1 (sv)
SE (1) SE503674C2 (sv)
SI (1) SI9520142B (sv)
SK (1) SK282040B6 (sv)
TR (1) TR199501493A1 (sv)
UA (1) UA32603C2 (sv)
WO (1) WO1996016727A1 (sv)
ZA (1) ZA959875B (sv)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508868C2 (sv) * 1997-03-17 1998-11-09 Flaekt Ab Anordning för blandning av partikelformigt material och vätska
US6685886B2 (en) * 1998-12-17 2004-02-03 Genencor International, Inc. Agitation system for a fluid bed processing system and a method thereof
SE523667C2 (sv) * 2002-09-20 2004-05-11 Alstom Switzerland Ltd Förfarande och anordning för avskiljning av gasformiga föroreningar från varma gaser medelst partikelformigt absorbentmaterial samt blandare för befuktning av absorbentmaterialet
US20040085856A1 (en) * 2002-10-30 2004-05-06 Murosako James K. Mixer
GB0322358D0 (en) * 2003-09-24 2003-10-22 Bioprogress Technology Ltd Improvements in powder compaction and enrobing
AT504426B8 (de) * 2006-10-24 2008-09-15 Scheuch Gmbh Vorrichtung zum befeuchten eines sorptionsmittels
ITTO20070084A1 (it) * 2007-02-06 2008-08-07 K & E Srl Dispositivi di miscelazione radiale per reattori inclinati rotanti.
DE102007057401A1 (de) * 2007-11-27 2009-05-28 Friedrich Hellmich Verfahren zur Aufbereitung von Sorptionsmaterial bei der Rauchgasreinigung in Ziegeleien
EP2990094A1 (en) 2010-11-24 2016-03-02 Alstom Technology Ltd Method of cleaning a carbon dioxide rich flue gas and a boiler system
US10343098B2 (en) 2013-05-13 2019-07-09 General Electric Company Cleaning valve with dampening mechanism
US9993762B2 (en) 2013-05-13 2018-06-12 General Electric Technology Gmbh Quiet pulse valve
CN103239958A (zh) * 2013-05-27 2013-08-14 芜湖华洁环保设备有限公司 加湿机
US9108152B2 (en) 2013-11-26 2015-08-18 Alstom Technology Ltd Dry scrubber system with low load distributor device
US8906333B1 (en) 2013-11-27 2014-12-09 Alstom Technology Ltd Dry scrubber system with air preheater protection
US9084964B1 (en) 2014-05-08 2015-07-21 Alstom Technology Radial fabric filter for particulate collection
CN104069770A (zh) * 2014-06-30 2014-10-01 张家港市锦明机械有限公司 一种新型整体脱硫混合器
US10092872B2 (en) 2014-09-17 2018-10-09 General Electric Technology Gmbh Valve with small vessel penetration diameter
DK3002051T3 (da) 2014-10-03 2020-03-30 General Electric Technology Gmbh Støvseparator, som er nyttig med tørskrubbersystem
US20160175793A1 (en) * 2014-12-18 2016-06-23 General Electric Company Material transporting devices and systems
EP3269692A1 (en) * 2016-07-11 2018-01-17 General Electric Technology GmbH Integrated lime hydrator
CN106000159A (zh) * 2016-07-15 2016-10-12 智胜化工股份有限公司 一种粉灰加湿机水分布器装置
US10232310B2 (en) 2016-10-05 2019-03-19 General Electric Technology Gmbh Multi-function duct for dry scrubber system
US11092980B2 (en) 2016-11-16 2021-08-17 General Electric Technology Gmbh Pulse valve with pressure vessel penetration
EP3323496B1 (en) 2016-11-18 2020-09-16 General Electric Technology GmbH Apparatus and method for reducing acid gas emissions with zero liquid discharge of waste water
PL3403709T3 (pl) 2017-05-19 2020-08-10 General Electric Technology Gmbh Filtr tkaninowy przeciw emisji niskiej zawartości cząstek stałych
CN111468026B (zh) * 2020-04-13 2022-04-12 中冶长天国际工程有限责任公司 一种物料加湿控制系统及控制方法
US11890782B2 (en) * 2020-06-05 2024-02-06 Vermeer Manufacturing Company Mixing systems having disk assemblies
US11439947B2 (en) 2020-08-28 2022-09-13 Andritz Aktiebolag System and method for mixing recirculating combustion ash with hydrated lime and water

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1247153A (en) * 1914-11-04 1917-11-20 Sherman C Roberts Apparatus for producing animal-fodder.
US1420008A (en) * 1920-09-25 1922-06-20 Henry S Wikel Apparatus for preparing stock food
DE409844C (de) * 1922-06-20 1925-02-12 Farbenfab Vorm Bayer F & Co Vorrichtung zur Herbeifuehrung einer innigen Mischung zwischen Gasen und Fluessigkeiten
US2320469A (en) * 1940-06-24 1943-06-01 Smidth & Co As F L Mixing and homogenizing apparatus
GB710306A (en) * 1951-12-21 1954-06-09 Amalgamated Limestone Corp Ltd Improvements relating to the mixing and conveying of powdered materials
US2946574A (en) * 1957-08-30 1960-07-26 Wibau Gmbh Installation for making briquettes
US3202281A (en) * 1964-10-01 1965-08-24 Weston David Method for the flotation of finely divided minerals
FR1412119A (fr) * 1964-10-19 1965-09-24 Dispositif pour la dispersion de particules solides en suspension de façon à les amener à l'état de finesse colloïdale
US3343814A (en) * 1965-06-01 1967-09-26 Bahre Metallwerk K G Fa Device for coating chips with glue
USRE29387E (en) * 1971-08-26 1977-09-06 Pettibone Corporation Apparatus for the continuous mixing of granular materials
US3997689A (en) * 1975-07-17 1976-12-14 Uop Inc. Preparation of semiconducting pyropolymeric inorganic refractory oxide materials
DE2602454B2 (de) * 1976-01-23 1980-12-11 Claudius Peters Ag, 2000 Hamburg Vorrichtung zum Behandeln pulvriger oder körniger Stoffe mit einer Flüssigkeit
US4049240A (en) * 1976-06-16 1977-09-20 Ecolaire Incorporated Continuous mixer and unloader
US4306815A (en) * 1979-07-12 1981-12-22 Urad Predsednictva Slovenskej Akademie Ved Apparatus for processing materials which are difficult to expand with gas and/or liquid, in an expanded layer

Also Published As

Publication number Publication date
SI9520142A (en) 1997-12-31
MD1228G2 (ro) 2000-02-29
JPH10510204A (ja) 1998-10-06
DK0794830T3 (da) 2002-04-29
CA2205059C (en) 2005-07-05
JP3649290B2 (ja) 2005-05-18
AU699500B2 (en) 1998-12-03
FI972232A0 (sv) 1997-05-27
MD1228F1 (en) 1999-05-31
ATE212875T1 (de) 2002-02-15
SI9520142B (sl) 2004-08-31
SK66097A3 (en) 1997-10-08
SE9404104L (sv) 1996-05-29
TR199501493A1 (tr) 1996-10-21
CZ287812B6 (en) 2001-02-14
DE69525370D1 (de) 2002-03-21
FI972232A (sv) 1997-05-27
WO1996016727A1 (en) 1996-06-06
PL320348A1 (en) 1997-09-29
PL178051B1 (pl) 2000-02-29
AU4126296A (en) 1996-06-19
BR9509828A (pt) 1997-09-30
CZ157397A3 (en) 1997-12-17
HU221802B1 (hu) 2003-01-28
RU2137535C1 (ru) 1999-09-20
KR100425997B1 (ko) 2004-06-30
KR980700120A (ko) 1998-03-30
SK282040B6 (sk) 2001-10-08
CN1076980C (zh) 2002-01-02
EE9700119A (et) 1997-12-15
ZA959875B (en) 1996-05-30
HUT77639A (hu) 1998-06-29
ES2172602T3 (es) 2002-10-01
RO115424B1 (ro) 2000-02-28
SE9404104D0 (sv) 1994-11-28
CA2205059A1 (en) 1996-06-06
UA32603C2 (uk) 2001-02-15
DE69525370T2 (de) 2003-03-13
US5887973A (en) 1999-03-30
EP0794830A1 (en) 1997-09-17
CN1166793A (zh) 1997-12-03
SE503674C2 (sv) 1996-07-29
PT794830E (pt) 2002-07-31

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